I love, love, LOVE it when I can tell a fic author has integrated their specialized knowledge in a fic. I was reading a fic that at some point included the character going to visit an art therapist, and it's so clear that the author is an art therapist themself, and the details included are just immaculate and I love it. I've previously read about a character doing fencing for no other reason than the author clearly wanting to write a sport they understood. A character being given a hyperfixation on bugs just so the author can infodump themselves.
I eat it up every time, it brings such a smile to my face
Yes! And just having a little giggle with yourself knowing that this is the author's universe, and they chose to put details in it that make it uniquely theirs.
Or even just little author quirks! I have a large vocabulary so finding a word I don't know is pretty rare. The author I'm reading now though, @misstuesday9 (or Miss_Lazy_Tuesday on Ao3), has used several words so far that I haven't seen before in the fic I'm reading (Finding The Line, Batfam), but particularly "effusive" which I've seen a few times just in that fic alone. It's just one of those things that I see and smile about, knowing that they probably don't even realize that they're doing it.























